// Optimal reading widths


.read_s  { max-width: var( --read-w-s,  24rem) }
.read_m  { max-width: var( --read-w-m,  28rem) }
.read_l  { max-width: var( --read-w-l,  37rem) }
.read_xl { max-width: var( --read-w-xl, 47rem) }